Ducati Monster Forum

I'm not familar with Ohlin shock models, it seems kind of cryptic.

There is a used 46PRCS i am trying to buy, but I'm not sure what the spec are on it. I keep getting mixed results.

Is it a DU333 or a DU046, both seem to show up on my findings for a 46PRCS.

I am finding the most common results are that the 46PRCS is a Gas type shock, not an emulsion shock. with double adjusters (rebound and compression) is it a good shock? I almost cant pass up on the deal if I can get it for my offering price.

http://www.ohlins.com/Our-products-new/Motorcycle/ (http://www.ohlins.com/Our-products-new/Motorcycle/)

That page will describe the code.

Yeah it's a good shock. Ohlins doesn't make junk.

So I can just ignore the DU333 or DU046 and go with that code chart?

P-Montotube high pressure gas type with external "piggy back" reservoir
R- Adjustable rebound with adjuster on the reservoir
Theres actually 2 R designations, based on location, does it make a difference? Or does R1 mean R and R2 mean RR?
C-Adjustable compression damping. Adjuster on reservoir
Theres also two designations, im assuming this is not high and low compression
S - Hose mounted hydraulic spring preload adjuster


I am trying to compare it the Penske 8983 Double clicker or 8987 triple clicker. I got my hands on one of their shocks and the build quality is absolutely amazing on it. Never actually held a ohlins unit in my hand, just ridden them.

You need to pay attention to the DU numbers. That will tell you what make and model the shock is valved and sprung for. It will also determine the length. Any make and model bike could use a 46prcs.

Not sure about the R1 and R2.

That shock does not have high and low speed adjustments. It does have remote preload adjustment.

I sent him a PM and waiting for his reply. i dont think he has the paperwork for it as far as teh DU number goes (unless its printed on the shock, which i dont think it is)

But it did come off an S2R800 which should be correct as far as shock length goes. I asked for the spring code  and ill get that later today. If the spring rate is near the rate i need i think the valve should be fine, but im not sure what the range of weights those valves are good for.

I don't think the number is on the shock.

I have a DU 440 on my bike and the shock came with a 9.5 and was replaced with a 10.0 and the valve works fine.

Chances are the spring wasn't replaced on the one you're looking at so the valve should be fine.

You'll like the Ohlins...they work great.

Here's the full rundown, DU 046-S46PR1C1S:
http://www.ohlins.com/Templates/Pages/TypeCode/TypeCode.aspx?typecode=S46PR1C1S (http://www.ohlins.com/Templates/Pages/TypeCode/TypeCode.aspx?typecode=S46PR1C1S)

Problem is, that shock has a piggyback reservoir.
It will hit your swingarm.
That shock fits 'ST" framed DSS Monsters.

From Ohlins, you need a DU333-S46HR1C1S:
http://www.ohlins.com/Templates/Pages/TypeCode/TypeCode.aspx?typecode=S46HR1C1S (http://www.ohlins.com/Templates/Pages/TypeCode/TypeCode.aspx?typecode=S46HR1C1S)

My current shock has a piggy back reservoir like this (999 Showa)

If its 100% certain to hit the swingarm, then i cant run it. I made a mistake reading it, it was off an M800, not an S2R800. Which pretty much means it wont fit eh?

(http://i307.photobucket.com/albums/nn308/breuniga/DSC01828.jpg)

I have a 848 shock with the horizontal reservoir.

Not sure if it would work with your bike.

On my Ohlins (now on the way to a new owner) the DU code was ever-so-lightly stamped on the side of the bodycap in very small font.  Small amount of grunge would probably obscure it.

I think any rider would be happy with the fit/finish and performance of both Ohlins and Penske.  Penske is way more "billet" and produced in far smaller numbers, but both brands are absolutely top-shelf.

BK

Im looking at penske and ohlins only right now Raux, and that shock does not fit. its too short and the reservoir hits the swingarm for sure.

It would be nice to compare the DU046 to the 999 showa.  theres tons of room for the reservoir if the geometery of the shock is like the 999 one.

The DU046 isn't too short.
All of the ST-framed Monsters take the same length shock, even the S*R Monsters.

Here's a handy chart that shows configurations, model numbers, lengths, etc.
http://www.pashnit.com/product/ohlins/shocks_ducati.html (http://www.pashnit.com/product/ohlins/shocks_ducati.html)

i was refering to the 848 shocks, they are 11inches long vs the 12 inch for the Monster.

thats a great chart, thanks speeddog.

the chart shows that the 999 and the ST frame shocks are both piggy back, im assuming they are using the same body cap so the geometery should be the same. So if it fits a 999, technically speaking, it should fit the S2R without interference with the swingarm.

I asked him for a section view of the shock so i can compare the angle of the shock to my 999 showa. if it matches up, the only real issue is the coil bracket that the 1000DS has. which i already cut off.

I have an Öhlins that I bought new on my 2002 M900; the label on the box reads:
DU 046
Duc Monster S4 # 46PRCS.

This is what it look like on the bike:

(http://i855.photobucket.com/albums/ab117/Monsterhpd/Monster%20Forum/P7020010.jpg)


The Shock for a 999 has the same overall length (350 mm C-C), but different stroke (999 has 76 mm, Monster 66 mm if memory serves).

(http://i855.photobucket.com/albums/ab117/Monsterhpd/Monster%20Forum/DSC_0201.jpg)

This picture shows the 999 to the left, and the ST4S shock to the right. The ST4s shock will fit an M900 as they are the same length and same stroke. The difference in shock stroke is reflected by the diference in shock body length.

The 999 shock will fit the Monster / ST bikes as far as CC length goes, but the longer stroke will allow the rear wheel of a Monster / ST bike to travel too far, should you hit a really big bump. I also think the reservoir will interfere with the header from the rear cylinder; I haven´t actually tried it but from the looks of it I think they would interfere. 

I would not bother about rider weight and shimming, since rider weight is mainly important for the low speed damping, easily compensated for by using the adjusters. The rest is a matter of personal taste, and if you are sensitive enough to want a change, you could talk to your suspension shop when you have your shock serviced. Which should be done every 2 or 3 years anyway.       

 

couldn't you just change the stroke with a larger bumpstop

that would be the correct angle for it to fit. the DU046 seems like the reservoir is mounted perpendicular to the eyelet so it will 100% for sure hit the swingarm at that angle  and wont fit the other way, so its a no go.

thanks for all the help guys. Looks like im back at picking up a brand new penske. Riding season is almost done here i may just keep searching for a used alternative. for next year.

Can they be mounted upside down

Hi again.

A few final notes from my end:
Stroke could be shortened by inserting a washer of suitable thickness between the rubber bump stop and the mounting eyelet. You could also ask yoyr Öhlins shop to change the schock body, but that might not be economically reasonable... whatever relevance that has on Ducati ownership  [roll]

The stock Showa for the S2R singlesides swingarm I bought a while ago looks like this:

(http://i855.photobucket.com/albums/ab117/Monsterhpd/Monster%20Forum/S2Rshock.jpg)

I haven´t tried it out, but it would seem Ducati came to the same conclusion: The stock Monster /ST shock won´t fit.

One possible alternative could be the shock fron the S4R Monster (or whatever the designation for the pearl-white Monster hot-rod was); This is what it looks like on my wifes M800 (not so) Dark (anymore):

(http://i855.photobucket.com/albums/ab117/Monsterhpd/Monster%20Forum/hlinsDark3.jpg)
  
Edit: Looks very similiar, the 2. I´ll have a closer look tomorrow ...   

That's from an S4Rs.

The S4Rs would only fit the S2R1000 if the coil was cut, or the s2r800.

Though at that price point (unless i found a used one) i am leaning towards american made Penske. although there is no remote preload adjuster the penskes are pretty easy to adjust.

He Man
I ended up getting a Penske through CCW. A very high level of craftsmanship indeed. The good thing is they build to order, wanting to know your riding style, roads, weight, etc.

CCW = concealed carry weapon,

so is penske the name of your CCW or something? :p

Seriously, who is CCW? is that a stateside company?

which one did you buy?

California Cycle Works. Check out the site.
I got the basic model. You can pay  more for the twin or triple clickers, but the basic shock is an example of a basic design executed to the highest level. Works great on my streetbike. You will probably need more adjustment than that offered by the basic model. At least the design is modular allowing up spec components later if desired.

their basic model is an emulsion type shock and they said that their emulsion system does not work well on the S2R because of heat issues and the routing of the exhaust. (or thats what a member here said).

I love CCW! (both the carry permit and the shop) didnt know they do penske, but if they send the request out to penske anyway, i might just go directly to penske, unless they get a kickback from them, then i am glad to order through CA-cycleworks.

Specing up is not worth it on the penske. you pay for the part in there, and you pay again and thye old part is useless and their parts are not cheap by anymeans!

edit: make the beast with two backs! Ca-cycleworks 90 cheaper than penske! im ordering from them!